Title :
The on-line prediction of airgap eccentricity levels in large (MW range) 3-phase induction motors
Author :
Thomson, W.T. ; Barbour, A.
Author_Institution :
Robert Gordon Univ., Aberdeen, UK
Abstract :
The focus of this paper is to apply time stepping finite element analysis to model large (MW), 11 kV, 3-phase induction motors as a function of the combination of static and dynamic airgap eccentricity. An industrial case history is presented to confirm the validity of the theoretical predictions and actual diagnosis
Keywords :
air gaps; finite element analysis; induction motors; machine theory; 1.45 MW; 11 kV; 3-phase induction motors; airgap eccentricity levels prediction; dynamic airgap eccentricity; on-line prediction; static airgap eccentricity; time stepping finite element analysis; Equations; Finite element methods; Frequency; History; Induction motors; Laboratories; Mathematical model; Signal analysis; Stator cores; Stator windings;
Conference_Titel :
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5293-9
DOI :
10.1109/IEMDC.1999.769122
